“This is a tragic case of friendly fire,” O’Neill said during a news conference at police headquarters.

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New York Police Officer Brian Mulkeen died from friendly fire Sunday during a struggle with an armed suspect, police officials said. (NYPD / Twitter)

The suspect, Antonio Williams, 27, died at the scene. Investigators previously believed that Williams wrestled away Mulkeen’s gun while the pair were on the ground.

However, officials said the nearly seven-year department veteran retained control of his weapon and fired several shots during the encounter.

Mulkeen and two plainclothes officers were on patrol near a city housing complex around 12:30 a.m. during an investigation into potential gang activity.

While police were questioning Williams, he reportedly fled behind a building. Mulkeen, a former college track star, tackled Williams, who went after the officer’s weapon during a struggle, according to the NYPD.

Investigators determined several officers fired 10 shots. Mulkeen was wearing body armor during the deadly encounter. Nevertheless, he was hit in the head and torso, officials said.

They said the torso shot exited his body through his thigh. He was taken to a hospital where he later passed away.

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“It was a violent struggle and from start to finish, from first round to last round, was 10 seconds,” the commissioner said, according to the New York Post. “Just think about that. Think about how quick that is.”

In what was originally described an “ambush,” investigators found a handgun they said belonged to Williams. It was never fired, they added. Williams was on probation until 2022 for a drug-related arrest last year. He had several prior arrests, and his record includes a burglary conviction, NYPD officials said.

In this photo provided by the New York City Police Department, a handgun recovered at the scene of the shooting. (NYPD)

It was unclear if any of the rounds fired by Mulkeen struck Williams.

Mulkeen’s death is the second of an NYPD officer from friendly fire this year. Queens Det. Brian Simonsen died in February after he was struck in the chest as he and six officers fired 42 rounds at a robbery suspect who mimicked pulling the trigger of a fake handgun.

“We’ve been here too often. We know the directions to get here,” Patrick Lynch, the president of New York City’s Police Benevolent Association, said at the press conference. “It has to stop.”

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